summaryrefslogtreecommitdiffstats
path: root/arch/sparc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/cpu_32.c319
1 files changed, 195 insertions, 124 deletions
diff --git a/arch/sparc/kernel/cpu_32.c b/arch/sparc/kernel/cpu_32.c
index 4e14240f9ce..60528227e59 100644
--- a/arch/sparc/kernel/cpu_32.c
+++ b/arch/sparc/kernel/cpu_32.c
@@ -19,158 +19,229 @@
DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
-struct cpu_iu_info {
- int psr_impl;
+struct cpu_info {
int psr_vers;
- char *cpu_name; /* should be enough I hope... */
+ const char *name;
};
-struct cpu_fp_info {
- int psr_impl;
+struct fpu_info {
int fp_vers;
- char *fp_name;
+ const char *name;
};
-/* In order to get the fpu type correct, you need to take the IDPROM's
- * machine type value into consideration too. I will fix this.
- */
-#define CPU_FP(psr, ver, name) \
-{ .psr_impl = (psr), .fp_vers = (ver), .fp_name = (name) }
-static struct cpu_fp_info linux_sparc_fpu[] = {
- CPU_FP(0, 0, "Fujitsu MB86910 or Weitek WTL1164/5"),
- CPU_FP(0, 1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"),
- CPU_FP(0, 2, "LSI Logic L64802 or Texas Instruments ACT8847"),
- /* SparcStation SLC, SparcStation1 */
- CPU_FP(0, 3, "Weitek WTL3170/2"),
- /* SPARCstation-5 */
- CPU_FP(0, 4, "Lsi Logic/Meiko L64804 or compatible"),
- CPU_FP(0, 5, "reserved"),
- CPU_FP(0, 6, "reserved"),
- CPU_FP(0, 7, "No FPU"),
- CPU_FP(1, 0, "ROSS HyperSparc combined IU/FPU"),
- CPU_FP(1, 1, "Lsi Logic L64814"),
- CPU_FP(1, 2, "Texas Instruments TMS390-C602A"),
- CPU_FP(1, 3, "Cypress CY7C602 FPU"),
- CPU_FP(1, 4, "reserved"),
- CPU_FP(1, 5, "reserved"),
- CPU_FP(1, 6, "reserved"),
- CPU_FP(1, 7, "No FPU"),
- CPU_FP(2, 0, "BIT B5010 or B5110/20 or B5210"),
- CPU_FP(2, 1, "reserved"),
- CPU_FP(2, 2, "reserved"),
- CPU_FP(2, 3, "reserved"),
- CPU_FP(2, 4, "reserved"),
- CPU_FP(2, 5, "reserved"),
- CPU_FP(2, 6, "reserved"),
- CPU_FP(2, 7, "No FPU"),
- /* SuperSparc 50 module */
- CPU_FP(4, 0, "SuperSparc on-chip FPU"),
- /* SparcClassic */
- CPU_FP(4, 4, "TI MicroSparc on chip FPU"),
- CPU_FP(5, 0, "Matsushita MN10501"),
- CPU_FP(5, 1, "reserved"),
- CPU_FP(5, 2, "reserved"),
- CPU_FP(5, 3, "reserved"),
- CPU_FP(5, 4, "reserved"),
- CPU_FP(5, 5, "reserved"),
- CPU_FP(5, 6, "reserved"),
- CPU_FP(5, 7, "No FPU"),
- CPU_FP(9, 3, "Fujitsu or Weitek on-chip FPU"),
+#define NOCPU 8
+#define NOFPU 8
+
+struct manufacturer_info {
+ int psr_impl;
+ struct cpu_info cpu_info[NOCPU];
+ struct fpu_info fpu_info[NOFPU];
};
-#define NSPARCFPU ARRAY_SIZE(linux_sparc_fpu)
+#define CPU(ver, _name) \
+{ .psr_vers = ver, .name = _name }
+
+#define FPU(ver, _name) \
+{ .fp_vers = ver, .name = _name }
-#define CPU_INFO(psr, ver, name) \
-{ .psr_impl = (psr), .psr_vers = (ver), .cpu_name = (name) }
-static struct cpu_iu_info linux_sparc_chips[] = {
+static const struct manufacturer_info __initconst manufacturer_info[] = {
+{
+ 0,
/* Sun4/100, 4/200, SLC */
- CPU_INFO(0, 0, "Fujitsu MB86900/1A or LSI L64831 SparcKIT-40"),
- /* borned STP1012PGA */
- CPU_INFO(0, 4, "Fujitsu MB86904"),
- CPU_INFO(0, 5, "Fujitsu TurboSparc MB86907"),
- /* SparcStation2, SparcServer 490 & 690 */
- CPU_INFO(1, 0, "LSI Logic Corporation - L64811"),
- /* SparcStation2 */
- CPU_INFO(1, 1, "Cypress/ROSS CY7C601"),
- /* Embedded controller */
- CPU_INFO(1, 3, "Cypress/ROSS CY7C611"),
- /* Ross Technologies HyperSparc */
- CPU_INFO(1, 0xf, "ROSS HyperSparc RT620"),
- CPU_INFO(1, 0xe, "ROSS HyperSparc RT625 or RT626"),
- /* ECL Implementation, CRAY S-MP Supercomputer... AIEEE! */
- /* Someone please write the code to support this beast! ;) */
- CPU_INFO(2, 0, "Bipolar Integrated Technology - B5010"),
- CPU_INFO(3, 0, "LSI Logic Corporation - unknown-type"),
- CPU_INFO(4, 0, "Texas Instruments, Inc. - SuperSparc-(II)"),
- /* SparcClassic -- borned STP1010TAB-50*/
- CPU_INFO(4, 1, "Texas Instruments, Inc. - MicroSparc"),
- CPU_INFO(4, 2, "Texas Instruments, Inc. - MicroSparc II"),
- CPU_INFO(4, 3, "Texas Instruments, Inc. - SuperSparc 51"),
- CPU_INFO(4, 4, "Texas Instruments, Inc. - SuperSparc 61"),
- CPU_INFO(4, 5, "Texas Instruments, Inc. - unknown"),
- CPU_INFO(5, 0, "Matsushita - MN10501"),
- CPU_INFO(6, 0, "Philips Corporation - unknown"),
- CPU_INFO(7, 0, "Harvest VLSI Design Center, Inc. - unknown"),
- /* Gallium arsenide 200MHz, BOOOOGOOOOMIPS!!! */
- CPU_INFO(8, 0, "Systems and Processes Engineering Corporation (SPEC)"),
- CPU_INFO(9, 0, "Fujitsu or Weitek Power-UP"),
- CPU_INFO(9, 1, "Fujitsu or Weitek Power-UP"),
- CPU_INFO(9, 2, "Fujitsu or Weitek Power-UP"),
- CPU_INFO(9, 3, "Fujitsu or Weitek Power-UP"),
- CPU_INFO(0xa, 0, "UNKNOWN CPU-VENDOR/TYPE"),
- CPU_INFO(0xb, 0, "UNKNOWN CPU-VENDOR/TYPE"),
- CPU_INFO(0xc, 0, "UNKNOWN CPU-VENDOR/TYPE"),
- CPU_INFO(0xd, 0, "UNKNOWN CPU-VENDOR/TYPE"),
- CPU_INFO(0xe, 0, "UNKNOWN CPU-VENDOR/TYPE"),
- CPU_INFO(0xf, 0, "UNKNOWN CPU-VENDOR/TYPE"),
-};
+ .cpu_info = {
+ CPU(0, "Fujitsu MB86900/1A or LSI L64831 SparcKIT-40"),
+ /* borned STP1012PGA */
+ CPU(4, "Fujitsu MB86904"),
+ CPU(5, "Fujitsu TurboSparc MB86907"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(0, "Fujitsu MB86910 or Weitek WTL1164/5"),
+ FPU(1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"),
+ FPU(2, "LSI Logic L64802 or Texas Instruments ACT8847"),
+ /* SparcStation SLC, SparcStation1 */
+ FPU(3, "Weitek WTL3170/2"),
+ /* SPARCstation-5 */
+ FPU(4, "Lsi Logic/Meiko L64804 or compatible"),
+ FPU(-1, NULL)
+ }
+},{
+ 1,
+ .cpu_info = {
+ /* SparcStation2, SparcServer 490 & 690 */
+ CPU(0, "LSI Logic Corporation - L64811"),
+ /* SparcStation2 */
+ CPU(1, "Cypress/ROSS CY7C601"),
+ /* Embedded controller */
+ CPU(3, "Cypress/ROSS CY7C611"),
+ /* Ross Technologies HyperSparc */
+ CPU(0xf, "ROSS HyperSparc RT620"),
+ CPU(0xe, "ROSS HyperSparc RT625 or RT626"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(0, "ROSS HyperSparc combined IU/FPU"),
+ FPU(1, "Lsi Logic L64814"),
+ FPU(2, "Texas Instruments TMS390-C602A"),
+ FPU(3, "Cypress CY7C602 FPU"),
+ FPU(-1, NULL)
+ }
+},{
+ 2,
+ .cpu_info = {
+ /* ECL Implementation, CRAY S-MP Supercomputer... AIEEE! */
+ /* Someone please write the code to support this beast! ;) */
+ CPU(0, "Bipolar Integrated Technology - B5010"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(-1, NULL)
+ }
+},{
+ 3,
+ .cpu_info = {
+ CPU(0, "LSI Logic Corporation - unknown-type"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(-1, NULL)
+ }
+},{
+ 4,
+ .cpu_info = {
+ CPU(0, "Texas Instruments, Inc. - SuperSparc-(II)"),
+ /* SparcClassic -- borned STP1010TAB-50*/
+ CPU(1, "Texas Instruments, Inc. - MicroSparc"),
+ CPU(2, "Texas Instruments, Inc. - MicroSparc II"),
+ CPU(3, "Texas Instruments, Inc. - SuperSparc 51"),
+ CPU(4, "Texas Instruments, Inc. - SuperSparc 61"),
+ CPU(5, "Texas Instruments, Inc. - unknown"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ /* SuperSparc 50 module */
+ FPU(0, "SuperSparc on-chip FPU"),
+ /* SparcClassic */
+ FPU(4, "TI MicroSparc on chip FPU"),
+ FPU(-1, NULL)
+ }
+},{
+ 5,
+ .cpu_info = {
+ CPU(0, "Matsushita - MN10501"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(0, "Matsushita MN10501"),
+ FPU(-1, NULL)
+ }
+},{
+ 6,
+ .cpu_info = {
+ CPU(0, "Philips Corporation - unknown"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(-1, NULL)
+ }
+},{
+ 7,
+ .cpu_info = {
+ CPU(0, "Harvest VLSI Design Center, Inc. - unknown"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(-1, NULL)
+ }
+},{
+ 8,
+ .cpu_info = {
+ CPU(0, "Systems and Processes Engineering Corporation (SPEC)"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(-1, NULL)
+ }
+},{
+ 9,
+ .cpu_info = {
+ /* Gallium arsenide 200MHz, BOOOOGOOOOMIPS!!! */
+ CPU(0, "Fujitsu or Weitek Power-UP"),
+ CPU(1, "Fujitsu or Weitek Power-UP"),
+ CPU(2, "Fujitsu or Weitek Power-UP"),
+ CPU(3, "Fujitsu or Weitek Power-UP"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(3, "Fujitsu or Weitek on-chip FPU"),
+ FPU(-1, NULL)
+ }
+}};
-#define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips)
+/* In order to get the fpu type correct, you need to take the IDPROM's
+ * machine type value into consideration too. I will fix this.
+ */
const char *sparc_cpu_type;
const char *sparc_fpu_type;
unsigned int fsr_storage;
-void __cpuinit cpu_probe(void)
+static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
{
- int psr_impl, psr_vers, fpu_vers;
- int i, psr;
-
- psr_impl = ((get_psr() >> 28) & 0xf);
- psr_vers = ((get_psr() >> 24) & 0xf);
-
- psr = get_psr();
- put_psr(psr | PSR_EF);
- fpu_vers = ((get_fsr() >> 17) & 0x7);
- put_psr(psr);
-
- for (i = 0; i < NSPARCCHIPS; i++) {
- if (linux_sparc_chips[i].psr_impl == psr_impl)
- if (linux_sparc_chips[i].psr_vers == psr_vers) {
- sparc_cpu_type = linux_sparc_chips[i].cpu_name;
+ sparc_cpu_type = NULL;
+ sparc_fpu_type = NULL;
+ if (psr_impl < ARRAY_SIZE(manufacturer_info))
+ {
+ const struct cpu_info *cpu;
+ const struct fpu_info *fpu;
+
+ cpu = &manufacturer_info[psr_impl].cpu_info[0];
+ while (cpu->psr_vers != -1)
+ {
+ if (cpu->psr_vers == psr_vers) {
+ sparc_cpu_type = cpu->name;
+ sparc_fpu_type = "No FPU";
+ break;
+ }
+ cpu++;
+ }
+ fpu = &manufacturer_info[psr_impl].fpu_info[0];
+ while (fpu->fp_vers != -1)
+ {
+ if (fpu->fp_vers == fpu_vers) {
+ sparc_fpu_type = fpu->name;
break;
}
+ fpu++;
+ }
}
-
- if (i == NSPARCCHIPS)
+ if (sparc_cpu_type == NULL)
{
printk(KERN_ERR "CPU: Unknown chip, impl[0x%x] vers[0x%x]\n",
psr_impl, psr_vers);
sparc_cpu_type = "Unknown CPU";
}
-
- for (i = 0; i < NSPARCFPU; i++) {
- if (linux_sparc_fpu[i].psr_impl == psr_impl)
- if (linux_sparc_fpu[i].fp_vers == fpu_vers) {
- sparc_fpu_type = linux_sparc_fpu[i].fp_name;
- break;
- }
- }
-
- if (i == NSPARCFPU) {
+ if (sparc_fpu_type == NULL)
+ {
printk(KERN_ERR "FPU: Unknown chip, impl[0x%x] vers[0x%x]\n",
psr_impl, fpu_vers);
sparc_fpu_type = "Unknown FPU";
}
}
+
+void __cpuinit cpu_probe(void)
+{
+ int psr_impl, psr_vers, fpu_vers;
+ int psr;
+
+ psr_impl = ((get_psr() >> 28) & 0xf);
+ psr_vers = ((get_psr() >> 24) & 0xf);
+
+ psr = get_psr();
+ put_psr(psr | PSR_EF);
+ fpu_vers = ((get_fsr() >> 17) & 0x7);
+ put_psr(psr);
+
+ set_cpu_and_fpu(psr_impl, psr_vers, fpu_vers);
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-19 00:01:22 +0000